Headphones



FIG. 1 is a perspective view of headphones showing my new design;

FIG. 2 is a front elevational view thereof, the rear side being a mirror image;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a reference perspective view thereof, in which both sides of the headphones are folded inwardly. 

I claim the ornamental design for headphones, as shown and described. 